Silo.



F. KNACKl SILO,

APPucATwN FILED ocr. 1a. 191s. aENEwED sEPr.19.19|1.

1.246,281, mmm Nov. 13, 1917.

3 SHEETS-SHEET l.

fifa] 4/ f: :g s: 44 if T;TL

.F. KNACK.

SILO.

APPLICATION HLED ocT. 13, 191s. RENEWED sPT.19.1917.'

1 ,246,281 Patented Nov. 13, 1917.

., 3 SHEETS-SHEET 2 fa. 4. 4 /d /775 /f' ZZ me/nilo@ F. KNACK. SLO.

APPLICATION man 0m13.191s. nENEwwszPT. 19. |911.

1,246,281 Patented Nov. 13, 1917.

UNiTED STATES "PATENT OFFICE.

` FREDERICK KNACK, or noeuiiiin, Wasnrrteroiv,

sILo.

Specification of Letters Patent. i Patented NV. 13, 1917.

Application led October 13, 1916, Serial No. 125,389. Renewed September 19, 1917. Serial No. 192,221. y

To all whom 'it may concern.' A Y Be it known that I, FREDERICK KNACK, a citizen ot' the UnitedStates of America, residing at Hoquiam, in the county of Grays Harbor and State of Washington, have invented a new and useful Improvement in Silos, of which the following is a specification. Y'

y My invention relates to improvements in silos, and is designed primarily for thepur- Y pose of providing a silo structure which may be erected with facility,is perfectly' water tight, well ventilated,V strong and durable, and not likely` to become deformed or misshapened in use.

-. vThe invention consists in certain novel combinations, and arrangements of parts whereby the silo may be assembled or erected by sections and `rendered waterproof, and well ventilated, all as will be more full described and claimed hereinafter. Inthe accompanying drawings I have illustrated one Vcomplete example of the physical embodiment oit my invention constructed according tothe best mode I have so far devised for the practicalapplication of the principles of my invention'.

Figure lis a front elevationof a silo, with a portion of its `foundation broken away,

kand embodying the novel featuresof my invention. y

Fig. 2 illustrates one of the uprights or posts of a section, ,and one of the tongues usedin"conjunction with a pair of these posts.

Fig. 3 illustrates the center post and Vconnections ofthe roof or cover for the silo.,

F ig. 4 is an enlargedhorizontal sectional View taken through the doorwayand door of the silo,.showing adjoining parts. Fig. 5 Ais a top plan view of the silo, showing a portion of the .cover removed.

, Fig. 6 is a sectional view showing a pair of posts and a jointbetween the rings or rods for holding the .silo together. y

Fig. 7 is an enlarged sectional view showing; a portion of the cover oi' thesilo, and showing the dormerin elevation. 1 v l Fig. 8 illustrates the relation between a pair of horizontal ribs and a dual post.

Fig. 9 is a vertical sectional :view through one of the horizontal ribs.

In the preferred embodiment of myfinvention, as illustrated inthe drawings, the silo is cylindrical in form,-and made up of eight sections (and an additional section forming the doorway. Each of these eight Vsections comprises a pair of posts as l and l," which are preferably of wood, and formed with Yan extension or rib 2y anda groove 3. Theseposts extend the. entire height of the silo' and are arran ed in )airs b 7 7 one at each end of a section, and theposts of ad] oining sections, when the sections are erected, have their complementary grooves .numeral` 5, which are fastened at their ends to the posts l and l', and spaced, saytwo feet apart, at regular intervals in the height ,of the silo. In Fig. 9, it will be seenthatthe ribl 5 has at `its uppersurface a shoulder 16,'

and atitsnnder surface a groove 7, andat its outer surface another groove 8, these grooves and the shoulder extending from end to end ofthe curved rib. The rib-is bent toy correspond to the diameter Vo t'the silo to be built,-and the ends ot' the ribs are formed with shoulders- `9 which engage .a ange 10 on the posts l and l. rlhe series of horizontally disposed ribs which are secured at their endsto the posts l andfl,

together with the posts, form a rigid frame upon which-the walls of the silo arebuilt. These walls comprise, at their interi-or, two shells, the rst 'madel up` ot' ooring, or tongue and groove boards l0', and the innermost shell is made up of tongue andgroove flooring as indicated at l1.k The flooring ll is preferably thicker,v than the flooring 105, and` it will be seen that the inner joints .of the interior shell of the wall are spaced apartor,open, as indicated at l2. This open Joint. permits the Awood to swellV after .the

silo has ben erected .andensilageplaced therein, and at the same time prevents buckling or warping of the material PreflOO erably, I place a layer of paratlinV paper as l13,. between the two shells llOandllto Y insure a water tight structure. The shells lit snugly in the corners between the ribs'Q and flanges l0 y'ofthe upright posts l and El',

and the shoulders 9 on the ribs '5 it snugly Vagainst the iianges 1.0 .of :the posts, and

thus securing ya'vtirm "and rigid structure. Between the horizontal ribs are .disposed a series .of short vert-ical,horizontally spaced furring boards as 14, which extend from rib ilG to rib, and provide air spaces 15in the wall. The outer shell of the silo wall is made up of horizontally disposed bevel siding boards or sheathing 16, which extend from posts 1 to 1, and give to the silo the appearance as indicated in Fig. 1. The boards are curved to fit into groove T, and the curving of these boards may be accomplished by steaming in the usual manner at slight expense.

The boards which come in contact with the upper face of the horizontal ribs 5 are laid against the shoulders 6 on the ribs, and the boards which come against the underside of these ribs have 'their upper edges inserted in the grooves 7 of the ribs, in both cases forming weather tight joints.

In Fig. l, the door and doorway construction are illustrated. The door frame is formed by the pairof specially constructed posts 1a and 1b which are joined to their complementary posts by the tongue 4. Each door comprises a pair of shoulder side bars 17 and 18, and between these bars there are three layers of tongue and groove boards, indicatedas 19, 2O and 21. The boards 19 and 21 are arranged vertically, and the boards 20- extend horizont-ally, forming an air space-22V in the door. yThe side bars 17 and 18 ofthe door. engage shoulders V23 on the posts la and 1b, and the doorbar 24 which is pivoted at 25 to the center of the door, is utilized inv conjunction with a pair of! cam blocks or wedges 26y to lock the door in position. These blocksQaresecured to the` outer face of the jambs-or posts 1a and 1b. of the doorway, and thedoor baris swung upon its pivot 25m-engage the cam` blocks. The doorsare pulledl between the jambs by the action of the cams, and aresecurely -held inplace. The top and bottoniY frame bars for the-door are proi-'idedby the correspondingk horizontal ribs, and the side bars or jambs ofthe door. areiformed by theupright postslafanc 1".

In erecting thesilo, afterv the individual sections have been built up, the sectionsare takenv singly, and-stood upon end with the double tongues 4 between adj oinin'guprights orposts. The adjoining posts arepreferably held'togetherby means of bolts 27 and`nuts 28, and when. all of theV sectionshave been .placed `in position'they are bound together by'fmeans of the rods or hoops. 29, which'. are

passed around thel silo and are seated in the grooves 8 of the lribs 5. Inthis manner the.. sections are all held securely in position, and then the doorsare placed inpositionand builtV up as readily-understood. Y

The cover of the silofasy indicated at 30,

is pyramidal in shape and made-up of eight panels 31 andthe dormerfBQl:v Thefpanels comprisethegusual rafters 33 and afceiling oftonguel and groove materialz34, and this `boarding'is covered with a canvaslayer 35.

VThe cover or roof is supported from the silo,

at its perimeter, by means of angle brackets 36 which are bolted to the rafters and also to the inner shell of the silo, and the cover is also held down to the silo by means of a transversely arranged beam 37. This beam extends across the upper open end of the silo and at each end is provided with a metallic hook 38 bolted to the beam, and this hook engages over a rib 40 at the upper edge of t-he'silo. At the center of the coverI utilize a center block 41 at thehead of the center post 42, the parts being joined together by the blocks 48 and intermediate block 44. "his'center block or capv forms the apex of the cover, to which the Aroof panels center, and the post 42 depends alongside the cross beam 37. Post 42 is slotted at '45 and 46 adjacent the beam 37 for the reception of a key orwedge 47. As shown in Figs. 3 and 7, the key is in position to lock and hold the rootl down tight upon the beam. When it is Vdesired to raiser thereof or cover, the key is withdrawn, and placed in the slot 45. In Fig. 7, 'it will be seen by the arrow lthat-the air space is formed at the upper edge ofi-the silo where Vthe cover projects beyond. the silo walls, so that ventilation is provided for.

In erecting the silo, the parts are; suitably braced until they have all been securely locked and-fastened together, and should it be necessary to knock down the silo, this may be accomplished with equal Ifacility. The flooring or tongue and groove boards are preferably put together with whitel lead or linseed' oil,"and the furring which pro'- vides the airspacesV and thebevel siding on the outside'of the'wall-y are-designed to protect the innershells ofi-the Wall. The door sections are of course water tight Vand'4 the cross bars oirthedoors servefas a`V ladder, as is usual in silos of this-type.' Preferably, the canvas cover of the'roof and dor-mer'is provided with two coats of paint, andthe dormer itself may beplaced in any ofthe panels of the cover, as thel panels are'all of thej same' size and may.V be displaced tol-accommodate the dormer.

The silo is preferably supported upon a concrete base-48, by ythe-utilization of'iron anchors'in usual manner, and preferablyl an asphaltring, not shown, isutilized around theloweroutside edge of the silo.

From the, above description taken'in connection;y w-ith my drawings, it is apparent that I have provided a silo which fulfils the objects and purposes of my invention.

What I claim is:

1. A silo section 'comprising' apairjof layer of vertically extending boards with the end boards secured between the iange and rib, and an outer layer of horizontal boards between the ribs, the uppermost board between adjoining ribs being seated in a groove in a rib, and the lowermost board having its edge engaging against said shoulder.

2. A section of a silo comprising vertical posts and horizontal ribs connected to the posts, an inner layer of tongue and groove boards, an outer layer of tongue and groove boards with a lining of paper between said layers, furring strips on the outer side of the outer layer forming air spaces, and horizontal sheathingboards atthe outer side of said section.

3. A silo section comprising spaced posts and horizontal ribs, said ribs each having a shoulder onv its upper face and a groove on its lower face, an imier shell forming a portion of the wall of the section, and horizontally disposed boards forming the outer shell ofthe wall, the uppermost parallel boards between the ribs having their upper edges in said grooves, andthe lowermost boards having their lower edges engaging said shoulders.

In testimony whereof I aix my signature.

FREDERICK KNACK.-

coues ot this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington; D. C. 

